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IM Geo.4.11 Practice: Approximating Pi

A regular pentagon has side length 7 inches.

What is the perimeter of the pentagon? 

What is the area of the pentagon? 

The expression  approximates  by giving the perimeter of a regular polygon inscribed in a circle with radius 1. What does  stand for in the expression? 

If there are 60 sides, what is the difference between the perimeter and 

Technology required. A regular hexagon has side length 2 inches.

What is the perimeter of the hexagon? 

What is the area of the hexagon? 

An airplane travels 125 miles horizontally during a decrease of 9 miles vertically.

What is the angle of descent?

What is the distance of the plane’s path?

Select all true statements.

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Write 2 equations using sine and 2 equations using cosine based on triangle 

An equilateral triangle has area of  square units. What is the side length?